CVE-2026-112158
Medium
Description
A weakness has been identified in MikroTik RouterOS up to 6.40.5/6.44/7.20.8. Impacted is the function same_check of the file ipt_SAME.ko. Executing a manipulation can lead to integer overflow. The attack may be launched remotely. Upgrading to version 7.21.5 and 7.23.1 is recommended to address this issue. You should upgrade the affected component.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mikrotik Routeros
PublishedOct 19, 2026
First seenOct 19, 2026
Weakness typeCWE-190Integer overflowCWE-189CWE-189
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mikrotik routeros | 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 6.10, 6.11, 6.12, 6.13, 6.14, 6.15, 6.16, 6.17, 6.18, 6.19, 6.20, 6.21, 6.22, 6.23, 6.24, 6.25, 6.26, 6.27, 6.28, 6.29, 6.30, 6.31, 6.32, 6.33, 6.34, 6.35, 6.36, 6.37, 6.38, 6.39, 6.40, 6.40.0, 6.40.1, 6.40.2, 6.40.3, 6.40.4, 6.40.5, 6.41, 6.42, 6.43, 6.44, 7.20.0, 7.20.1, 7.20.2, 7.20.3, 7.20.4, 7.20.5, 7.20.6, 7.20.7, 7.20.8 | — |
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